EN1433 Outdoor Drain Cover Water Based Paint Surface Treatment
Gully gratings is made up of grating and frame, which can be arranged at road surface to keep round surface smoothly and vehicles pass easily, such as sewer well. Gully gratings has many perfect performance, high-intensity, pretty appearance, easy to use, guard against theft, Acid and alkali resistance, corrosion resistance, wear resistance, rolling resistance, long service life etc.
Material of Manhole Cover :
Ductile Iron Manhole Cover
|Class||Application||Dimension (Frame mm)|
|A15||Pedestrians, Pedal Cyclists||Dia760|
|B125||Footways, Pedestrians, Car parks||290*290, dia800 ...|
|C250||Kerbside channel of roads||700*700, 600*800 ...|
|D400||Road, hard shoulders etc.||850*850, 920*920 ...|
|E600||Docks, aircraft pavements etc.||as per your demands|
|F900||Aircraft pavements etc.||as per your demands|
1. Put damage:
This is the biggest characteristic of ductile iron gully grating, ductile iron gully gratings can be heavy pressure 36T/60T, light can be confined 21T. Even if the load pressure exceeds its limit, ductile iron gully grating cast iron is not as common as broken, but a slight deformation of the car and pedestrians has a certain security.
only through the mouth of the gully grating set to U-shaped, with a T-type synthetic rubber, U-shaped slot embedded in the contact gully gratings and the process in order to cushion and reduce the vibration force.
3mm tread gully gratings convex surface, and thus play a good non-slip effect.
Gully gratings the contact with the colossal surface, directly on the T-rubber, and dealt with gently, to eliminate noise.
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